TREA

with radially or approximately radially from the rotor body extending tooth-like elements, co-operating with recesses in the other rotor

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Industry

  • CPC
  • F04C18/123
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Parent Industries

FMECHANICAL ENGINEERING LIGHTING HEATING WEAPONS BLASTING ENGINES OR PUMPS F04Liquid pumps F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS F04C18/00Rotary-piston pumps specially adapted for elastic fluids

Current Industry

F04C18/123with radially or approximately radially from the rotor body extending tooth-like elements, co-operating with recesses in the other rotor
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Rotary piston compressor/pump/blower with a ventilation channel
    • Patent number 12,196,204
    • Issue date Jan 14, 2025
    • Gardner Denver Schopfheim GmbH
    • Dimitrij Sergey Kavun
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Multistage pump body and multistage gas pump
    • Patent number 12,116,895
    • Issue date Oct 15, 2024
    • Ateliers Busch SA
    • Théodore Iltchev
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Rotor unit assembly
    • Patent number 11,994,031
    • Issue date May 28, 2024
    • BAE Systems plc
    • James William Spain
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Device for recirculating an at least partially gaseous composition...
    • Patent number 11,959,478
    • Issue date Apr 16, 2024
    • BUSCH PRODUKTIONS GMBH
    • Théo Bilger
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Rotary piston compressor/pump/blower with a ventilation channel
    • Patent number 11,879,458
    • Issue date Jan 23, 2024
    • Gardner Denver Schopfheim GmbH
    • Dimitrij Sergey Kavun
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Rotary piston pump having a filter
    • Patent number 11,725,663
    • Issue date Aug 15, 2023
    • Gebr. Becker GmbH
    • Frank Diedrichsen
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Twin-shaft pumps with thermal breaks
    • Patent number 11,542,946
    • Issue date Jan 3, 2023
    • Edwards Limited
    • Neil Turner
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Rotary piston compressor/pump/blower with a ventilation channel
    • Patent number 11,441,563
    • Issue date Sep 13, 2022
    • Gardner Denver Schopfheim GmbH
    • Dimitrij Sergey Kavun
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Vacuum pump having a silencer
    • Patent number 11,274,668
    • Issue date Mar 15, 2022
    • LEYBOLD GMBH
    • Dieter Kolvenbach
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Screw compressor for HVAC
    • Patent number 10,876,768
    • Issue date Dec 29, 2020
    • DENSO International America, Inc.
    • Sean Schoneboom
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Method for cooling a compressor or vacuum pump and a compressor or...
    • Patent number 10,731,649
    • Issue date Aug 4, 2020
    • Atlas Copco Airpower, naamloze vennootschap
    • Alberto Di Sante
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Vacuum system
    • Patent number 10,704,552
    • Issue date Jul 7, 2020
    • POWEREX/IWATA AIR TECHNOLOGY INC.
    • Gregory Ellsworth Seaver
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Composite supercharger rotors and methods of construction thereof
    • Patent number 10,208,656
    • Issue date Feb 19, 2019
    • EATON INTELLIGENT POWER LIMITED
    • Martin Dale Pryor
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Two-shaft rotary pump with escape holes
    • Patent number 10,077,773
    • Issue date Sep 18, 2018
    • Orion Machinery Co., Ltd.
    • Yosuke Yoshida
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Claw pump
    • Patent number 10,012,231
    • Issue date Jul 3, 2018
    • Anest Iwata Corporation
    • Ryusuke Muto
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Claw pump
    • Patent number 10,006,459
    • Issue date Jun 26, 2018
    • Anest Iwata Corporation
    • Kenichi Kobayashi
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Vacuum pump
    • Patent number 9,879,677
    • Issue date Jan 30, 2018
    • Edwards Limited
    • Sivabalan Kailasam
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Positive displacement gear pump
    • Patent number 9,752,580
    • Issue date Sep 5, 2017
    • G.P.S. GREEN POWER SOLUTION SA
    • Franco Tommasini
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Multi-stage vacuum pump
    • Patent number 9,739,278
    • Issue date Aug 22, 2017
    • Edwards Limited
    • Alan Ernest Kinnaird Holbrook
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Claw pump with relief space
    • Patent number 9,702,361
    • Issue date Jul 11, 2017
    • Anest Iwata Corporation
    • Shiro Tanigawa
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Pump with corrosion resistant shaft and rotor surfaces
    • Patent number 9,695,824
    • Issue date Jul 4, 2017
    • Emmanuel Uzoma Okoroafor
    • F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
  • Information Patent Grant

    Roughing pump method for a positive displacement pump
    • Patent number 9,017,040
    • Issue date Apr 28, 2015
    • Oerlikon Leybold Vacuum GmbH
    • Peter Birch
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Vacuum pump
    • Patent number 9,004,891
    • Issue date Apr 14, 2015
    • Edwards Limited
    • Neil Turner
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Air compression device
    • Patent number 8,801,402
    • Issue date Aug 12, 2014
    • Cycle Arrow Technology Co. Ltd.
    • Yi-Lin Chu
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Air compression device
    • Patent number 8,757,992
    • Issue date Jun 24, 2014
    • Cycle Arrow Technology Co., Ltd.
    • Yi-Lin Chu
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Dual-inlet supercharger for EGR flow control
    • Patent number 8,726,660
    • Issue date May 20, 2014
    • Ford Global Technologies, LLC
    • Brad Alan Boyer
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Multiple stage dry pump
    • Patent number 8,573,956
    • Issue date Nov 5, 2013
    • Ulvac, Inc.
    • Toshio Suzuki
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Multistage vacuum pump
    • Patent number 8,517,701
    • Issue date Aug 27, 2013
    • Anest Iwata Corporation
    • Shiro Tanigawa
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Roots type gear compressor with helical lobes having communication...
    • Patent number 8,419,399
    • Issue date Apr 16, 2013
    • 592301 Alberta Ltd.
    • Jirka Kaplan
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Rotor assembly for multi-stage pump
    • Patent number 8,308,458
    • Issue date Nov 13, 2012
    • Edwards Limited
    • Nathan Lee Kettlewell
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...

Patents Applicationslast 30 patents

  • Information Patent Application

    ROTARY PISTON COMPRESSOR/PUMP/BLOWER WITH A VENTILATION CHANNEL
    • Publication number 20240110564
    • Publication date Apr 4, 2024
    • Gardner Denver Schopfheim GmbH
    • Dimitrij Sergey KAVUN
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    ROTOR UNIT ASSEMBLY
    • Publication number 20240003255
    • Publication date Jan 4, 2024
    • BAE Systems plc
    • James William Spain
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    DEVICE FOR RECIRCULATING AN AT LEAST PARTIALLY GASEOUS COMPOSITION...
    • Publication number 20230013325
    • Publication date Jan 19, 2023
    • BUSCH PRODUKTIONS GMBH
    • Théo Bilger
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    ROTARY PISTON COMPRESSOR/PUMP/BLOWER WITH A VENTILATION CHANNEL
    • Publication number 20230017937
    • Publication date Jan 19, 2023
    • Gardner Denver Schopfheim GmbH
    • Dimitrij Sergey KAVUN
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    ROTARY PISTON PUMP HAVING A FILTER
    • Publication number 20220145888
    • Publication date May 12, 2022
    • Gebr. Becker GmbH
    • Frank DIEDRICHSEN
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    MULTISTAGE PUMP BODY AND MULTISTAGE GAS PUMP
    • Publication number 20220127962
    • Publication date Apr 28, 2022
    • ATELIERS BUSCH SA
    • Théodore Iltchev
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    VACUUM PUMP WITH NOISE ATTENUATING PASSAGE
    • Publication number 20200200178
    • Publication date Jun 25, 2020
    • Ingersoll-Rand Company
    • Michael J. Lucas
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    SCREW COMPRESSOR FOR HVAC
    • Publication number 20200096235
    • Publication date Mar 26, 2020
    • DENSO International America, Inc.
    • Sean SCHONEBOOM
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    IMPROVEMENTS IN ROTARY CLAW PUMPS
    • Publication number 20200032799
    • Publication date Jan 30, 2020
    • THE QUEENSTOWN TRUST
    • John FLEMING
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    STATOR, ROTARY SHAFT, DRY VACUUM PUMP AND ASSOCIATED MANUFACTURING...
    • Publication number 20190277286
    • Publication date Sep 12, 2019
    • PFEIFFER VACUUM
    • Eric MANDALLAZ
    • F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
  • Information Patent Application

    VACUUM PUMP HAVING A SILENCER
    • Publication number 20190113036
    • Publication date Apr 18, 2019
    • Leybold GmbH
    • Dieter Kolvenbach
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    LOW CREEP BEARING AND METHOD FOR INSTALLING IN SUPERCHARGER
    • Publication number 20180031041
    • Publication date Feb 1, 2018
    • EATON CORPORATION
    • JASON A BRADY
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    PUMPING SYSTEM FOR GENERATING A VACUUM AND METHOD FOR PUMPING BY ME...
    • Publication number 20170284394
    • Publication date Oct 5, 2017
    • ATELIERS BUSCH SA
    • Didier MÜLLER
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    CLAW PUMP
    • Publication number 20160258435
    • Publication date Sep 8, 2016
    • ANEST IWATA CORPORATION
    • Ryusuke MUTO
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    POSITIVE DISPLACEMENT GEAR PUMP
    • Publication number 20160047377
    • Publication date Feb 18, 2016
    • G.P.S. GREEN POWER SOLUTION SA
    • Franco TOMMASINI
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    TWO-SHAFT ROTARY PUMP
    • Publication number 20160040669
    • Publication date Feb 11, 2016
    • ORION MACHINERY CO., LTD.
    • Yosuke YOSHIDA
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    VACUUM PUMP
    • Publication number 20150308430
    • Publication date Oct 29, 2015
    • Edwards Limited
    • Sivabalan KAILASAM
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    MULTI-STAGE VACUUM PUMP
    • Publication number 20140286806
    • Publication date Sep 25, 2014
    • EDWARDS LIMITED
    • Alan Ernest Kinnaird Holbrook
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    CLAW PUMP
    • Publication number 20140227122
    • Publication date Aug 14, 2014
    • Anest Iwata Corporation
    • Shiro Tanigawa
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    MULTISTAGE VACUUM PUMP
    • Publication number 20120257961
    • Publication date Oct 11, 2012
    • Anest Iwata Corporation
    • Shiro TANIGAWA
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    PUMPS
    • Publication number 20120171033
    • Publication date Jul 5, 2012
    • EDWARDS LIMITED
    • Emmanuel Uzoma Okoroafor
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Dual-Inlet Supercharger for EGR Flow Control
    • Publication number 20120124996
    • Publication date May 24, 2012
    • FORD GLOBAL TECHNOLOGIES, L.L.C.
    • Brad Alan Boyer
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    ROUGHING PUMP METHOD FOR A POSITIVE DISPLACEMENT PUMP
    • Publication number 20120063917
    • Publication date Mar 15, 2012
    • OERLIKON LEYBOLD VACUUM GMBH
    • Peter Birch
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    VACUUM PUMP
    • Publication number 20120045322
    • Publication date Feb 23, 2012
    • EDWARDS LIMITED
    • Emmanuel Uzoma Okoroafor
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    AIR COMPRESSION DEVICE
    • Publication number 20120045354
    • Publication date Feb 23, 2012
    • Yi-Lin CHU
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    DRY VACUUM PUMP
    • Publication number 20110256003
    • Publication date Oct 20, 2011
    • Ulvac, Inc.
    • Eiichiro Ohtsubo
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    AIR COMPRESSION DEVICE
    • Publication number 20110236232
    • Publication date Sep 29, 2011
    • Yi-Lin CHU
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    DRY PUMP
    • Publication number 20110194961
    • Publication date Aug 11, 2011
    • ULVAC, Inc.
    • Toshio Suzuki
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    Dual-Inlet Supercharger for EGR Flow Control
    • Publication number 20110131980
    • Publication date Jun 9, 2011
    • FORD GLOBAL TECHNOLOGIES, L.L.C.
    • Brad Alan Boyer
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    FKM OR FFKM MULTIPLE LAYERS SEAL
    • Publication number 20100239448
    • Publication date Sep 23, 2010
    • Emmanuel Uzoma Okoroafor
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...